Case Studies

Case studies of businesses that have reaped the rewards of investments in efficient motor systems technologies and process improvements.

Fans

Installation of a VSD on a cooling tower fan  (LinkPlas Ltd)
    File size: 400Kb

LinkPlas reduce cooling fan costs by installing a VSD to more efficiently control fan speed.

Pumps

Installation of a VSD on a cooling water system  (Rohm & Haas NZ Ltd)
    File size: 898Kb

Rohm & Haas NZ save $5,464 pa by installing a VSD to more efficiently control their cooling water pump.

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Installation of a bladder tank and pressure control system  (Higgins Aggregates)
    File size: 505Kb

Higgins Aggregates improves pumping efficiency with a water bladder tank system.

Drives

Replacement of eddy current coupling with a directly-coupled motor and VSD  (Quality Equipment Ltd)
    File size: 480Kb

Quality Equipment Ltd replaces eddy current coupling with a directly-coupled motor and VSD.

Compressors

Improving the efficiency of compressed air systems - pilot project  (Fonterra, Te Rapa)

The Fonterra Compressed Air Systems Electricity Efficiency Project was completed in 2007. It investigated the potential for electricity efficiency savings from improving the efficiency of compressed air systems (CAS) and tracked the results of investments in best practice operations and new compressed air equipment.